Szymanski played well at the beginning of last season. But after that he was never the same again. I don't think he has the skills to be the main character. Fenerbahçe fans expect goals and assists from him every game. But he is not the main character. There are players with good defensive qualities in Fenerbahçe's midfield. Ismail, Fred and Amrabat have very good defensive qualities. But I can't say the same for the players with good creative qualities. In recent years in Fenerbahçe we have seen mediocre players like Szymanski, Zahjc and Pelkas. Maybe Kostic will solve this problem.
Also it's hard to shine when there are other players who are much better. Fred is much better, Amrabat is much better, Maximin is a showman, and Tadic may look worse now, but normally he is a great player as we all know, also there is Dezko up front, with now their new transfer, all of which look much better than Szymanski, and that would cause some issues for a player to do what they want.
When you have that many great players around you, then you pass, and they do something with the game, that is why it's hard for many young players to show themselves, and only a very few superstar potential ones end up playing better. This will be very hard for him to be any good, it will be very hard for him and will not help him grow at all. I think he should stay happy the way he is, sure missing that goal was terrible but not like he would miss it normally, that was unlucky and I think it will do fine later on and just keep trying to do what he should be doing within the system.